1 definition
by
The Sentry

A word used to describe the best possible state of a party or social event.

"This party is so fucking vibesy right now..."
For a party to be this good everyone present must be massively winning. Drugs and alcohol must be present.
It is very difficult for a party to become truly vibesy, only a very select few have ever officially made a vibesy party. These people get away with everything... massively.
Chances are that you don't.
Th overwhelming majority of the worlds population will never know what it's like to be really fucking vibesy